scholarly journals Enhanced field emission properties of graphene-based cathodes fabricated by ultrasonic atomization spray

RSC Advances ◽  
2018 ◽  
Vol 8 (29) ◽  
pp. 16207-16213 ◽  
Author(s):  
Qinyu Wang ◽  
Zheng Zhang ◽  
Qingliang Liao ◽  
Zhuo Kang ◽  
Yue Zhang
Keyword(s):  
Field Emission ◽  
Electron Emission ◽  
Surface Geometry ◽  
Emission Properties ◽  
Ultrasonic Atomization ◽  
Field Emission Properties ◽  
Atomization Spray

Ultrasonic atomization spray endowed graphene cathodes with roughened 3-D array-like surface geometry which greatly enhanced electron emission.

scholarly journals Field Emission Properties of the Graphene Double-Walled Carbon Nanotube Hybrid Films Prepared by Vacuum Filtration and Screen Printing

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Jinzhuo Xu ◽  
Tao Feng ◽  
Yiwei Chen ◽  
Zhuo Sun
Keyword(s):  
Carbon Nanotube ◽  
Field Emission ◽  
Electron Emission ◽  
Screen Printing ◽  
Weight Ratio ◽  
Hybrid Films ◽  
Vacuum Filtration ◽  
Emission Properties ◽  
Field Emission Properties ◽  
Turn On

The graphene double-walled carbon nanotube (DWCNT) hybrid films were prepared by vacuum filtration and screen printing. Their electron field emission properties have been studied systematically. The electron emission properties of the hybrid films are much better than those of pure DWCNT films and pure graphene films. Comparing with the screen printed films, the vacuum filtered films have many advantages, such as lower turn-on field, higher emission current density, better uniformity, better long-term stability, and stronger adhesive strength with conductive substrates. The optimized hybrid films with 20% weight ratio of graphene, which were fabricated by vacuum filtration, show the best electron emission performances with a low turn-on field of 0.50 Vμm−1(at 1 μAcm−2) and a high field enhancement factorβof 27000.

Tunable field emission properties of well-aligned silicon nanowires with controlled aspect ratio and proximity

RSC Advances ◽  
2014 ◽  
Vol 4 (60) ◽  
pp. 31729-31734 ◽  
Author(s):  
Shasha Lv ◽  
Zhengcao Li ◽  
Shiming Su ◽  
Linhan Lin ◽  
Zhengjun Zhang ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Field Emission ◽  
Silicon Nanowires ◽  
Surface Geometry ◽  
Emission Properties ◽  
Field Emission Properties

The FE properties were influenced by dimensionality and surface geometry structures, and improved with the increase of proximity.

Enhancement of field electron emission in topological insulator Bi2Se3 by Ni doping

2018 ◽  
Vol 20 (27) ◽  
pp. 18429-18435 ◽  
Author(s):  
Kushal Mazumder ◽  
Alfa Sharma ◽  
Yogendra Kumar ◽  
Prashant Bankar ◽  
Mahendra A. More ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Field Emission ◽  
Topological Insulator ◽  
Electron Emission ◽  
Field Electron Emission ◽  
Bismuth Selenide ◽  
Ni Doping ◽  
Emission Properties ◽  
Field Emission Properties ◽  
Field Electron

Nanostructures of bismuth selenide (Bi2Se3), a 3D topological insulator material, and nickel (Ni) doped Bi2Se3 samples were prepared by a hydrothermal method to explore the field emission properties.

scholarly journals Enrichment in the field emission properties of NiCo2O4 nanostructures by UV/Ozone treatment

2021 ◽  
Author(s):  
Mansi Pathak ◽  
Pallavi Mutadak ◽  
Pratap Mane ◽  
Mahendra A More ◽  
Brahmananda Chakraborty ◽  
...  
Keyword(s):  
Field Emission ◽  
Electron Emission ◽  
Field Electron Emission ◽  
Ozone Treatment ◽  
Enhancement Effect ◽  
Emission Properties ◽  
Prepared Sample ◽  
Field Emission Properties ◽  
Uv Ozone ◽  
Spinel Nico2o4

Herein, UV/O3 treatment was imposed on the hydrothermally synthesized spinel NiCo2O4 urchin like structure to study its enhancement effect in the field electron emission properties. The as prepared sample was...

Enhanced field-emission properties of buckled α-borophene by means of Li decoration: a first-principles investigation

2018 ◽  
Vol 20 (22) ◽  
pp. 15139-15148 ◽  
Author(s):  
Bing Zheng ◽  
Liang Qiao ◽  
Hai-tao Yu ◽  
Qi-yue Wang ◽  
Ying Xie ◽  
...  
Keyword(s):  
Electric Field ◽  
External Electric Field ◽  
Field Emission ◽  
Potential Barrier ◽  
Electron Emission ◽  
First Principles ◽  
Emission Current ◽  
Emission Properties ◽  
Field Emission Properties ◽  
Field Emission Current

Li decoration and external electric field decrease the potential barrier to electron emission and increase field emission current of buckled α-borophene.

Enhanced Field Emission Properties of Carbon Nanotube Based Field Emitters by Dynamic Oxidation

2013 ◽  
Vol 9 (5) ◽  
pp. 619-623 ◽  
Author(s):  
Shama Parveen ◽  
Samina Husain ◽  
Avshish Kumar ◽  
Javid Ali ◽  
Mubashshir Husain ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Field Emission ◽  
Emission Properties ◽  
Field Emission Properties ◽  
Field Emitters ◽  
Dynamic Oxidation
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